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Finding the Fourth Proportional to 173,691.10, 260,536.65 and 55,374.40

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Solution

The fourth proportional to 173,691.10, 260,536.65 and 55,374.40 is: 83,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,691.10 : 260,536.65 = 55,374.40 : x
  2. Step 2: Convert to fraction form
    173,691.10/260,536.65 = 55,374.40/x
  3. Step 3: Cross multiply
    173,691.10x = 260,536.65 × 55,374.40
  4. Step 4: Simplify right side
    173,691.10x = 14,427,060,671.76
  5. Step 5: Solve for x
    x = 14,427,060,671.76/173,691.10
  6. Step 6: Final answer
    x = 83,061.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.